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Finding the Fourth Proportional to 449,512.74, 620,300.16 and 245,522.34

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Solution

The fourth proportional to 449,512.74, 620,300.16 and 245,522.34 is: 338,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,512.74 : 620,300.16 = 245,522.34 : x
  2. Step 2: Convert to fraction form
    449,512.74/620,300.16 = 245,522.34/x
  3. Step 3: Cross multiply
    449,512.74x = 620,300.16 × 245,522.34
  4. Step 4: Simplify right side
    449,512.74x = 152,297,546,785.57
  5. Step 5: Solve for x
    x = 152,297,546,785.57/449,512.74
  6. Step 6: Final answer
    x = 338,805.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.